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Contemp Clin Dent. 2018 Jul-Sep;9(3):367-371. doi: 10.4103/ccd.ccd_72_18.

Comparative Evaluation of Efficiency of Different File Systems in Terms of Remaining Dentin Thickness Using Cone-Beam Computed Tomography: An In vitro Study.

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1
Department of Paedodontics and Preventive Dentistry, Divya Jyoti College of Dental Sciences and Research, Modinagar, Uttar Pradesh, India.

Abstract

Background:

Endodontic therapy treats inside of the tooth and its success is based upon the triad of thorough canal debridement, effective disinfection, and obturation of the canal space. Thus, one of the most important steps is biomechanical preparation, which is the key stage of endodontic treatment with a predictive success factor if performed properly.

Aim:

The aim of the study is to evaluate and compare the cleaning efficiency of different file systems in terms of remaining dentin thickness.

Materials and Methods:

A total of thirty permanent extracted anterior teeth were taken for the study and was divided into three groups - Group I - Manual Protapers, Group II - Rotary Mtwo, and Group III - Reciprocating WaveOne file systems. Pre-cone-beam computed tomography (CBCT) scan was taken followed by biomechanical preparation by the respective file groups. Post-CBCT scan was taken and the pre- and post-CBCT scans were compared for remaining dentin thickness. Data were analyzed with ANOVA (P = 0.001).

Statistical Analysis Used:

ANOVA test was used in this study.

Results:

Protaper showed minimum reduction in dentin thickness followed by Mtwo and WaveOne showed maximum reduction in dentin thickness, but the intergroup comparison was found to be highly insignificant.

Conclusion:

WaveOne is a highly recommended rotary endodontic instrument which does not cause significant lowering in remaining dentin thickness after biomechanical preparation.

KEYWORDS:

Cone-beam computed tomography; Mtwo; Protaper; WaveOne

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